M3M condition | M2M condition | Coronectomy-related factors | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Age | P&G‘s depth of impaction | Angulation of M3M | RMS | DBD depth at BL | ERR | Enamel remains | Root migration | Root rotation | Total volume of bone regenerated in tooth socket | Thickness of calcification bridge above root section | ||
DBD depth reduction | r | −0.23 | 0.20 | 0.37 | −0.36 | 0.59 | −0.08 | − 0.03 | 0.01 | 0.19 | −0.01 | 0.27 |
P-value | 0.001 | 0.003 | 0.000 | 0.000 | 0.000 | NS | NS | NS | 0.005 | NS | 0.000 | |
PD reduction | r | −0.09 | 0.07 | 0.28 | −0.26 | 0.17 | −0.01 | − 0.06 | 0.02 | 0.06 | −0.03 | 0.30 |
P-value | 0.187 | 0.309 | 0.000 | 0.000 | 0.014 | NS | NS | NS | NS | NS | 0.000 | |
Volume of bone regenerated in distal 2 mm | r | −0.21 | 0.28 | 0.43 | −0.44 | 0.42 | −0.04 | − 0.02 | 0.09 | 0.24 | 0.20 | 0.25 |
P-value | 0.002 | 0.000 | 0.000 | 0.000 | 0.000 | NS | NS | NS | 0.000 | 0.004 | 0.000 |